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    Video production switcher panel and related methods
    3.
    发明授权
    Video production switcher panel and related methods 有权
    视频制作切换面板及相关方法

    公开(公告)号：US08519949B2

    公开(公告)日：2013-08-27

    申请号：US12100629

    申请日：2008-04-10

    申请人： David Allan Ross ,  Alun John Fryer ,  Troy David English ,  Brian James Ford ,  Kizito Gysbertus Antonius Van Asten ,  Julio Alberto Velandia Rodriguez ,  Norman Wong

    发明人： David Allan Ross ,  Alun John Fryer ,  Troy David English ,  Brian James Ford ,  Kizito Gysbertus Antonius Van Asten ,  Julio Alberto Velandia Rodriguez ,  Norman Wong

    IPC分类号： G09G5/00 ,  G06F3/02 ,  G09G3/36 ,  G09G5/10

    CPC分类号： H04N5/265 ,  H04H60/04 ,  H04N5/262

    摘要： Various improvements for video production switchers are disclosed. In a user input module, a Link button is operable to link key functions with a user controllable input device. A multicolor lighting arrangement may be provided, and possibly calibrated, for illuminating each button of a switcher with a controllable color and/or intensity. In an improved Pulse-Width Modulation (PWM) scheme, a PWM output is dependent on a pseudo-random number and a threshold. A display on a keyer module may be used to provide indications of a key source and type currently associated with the keyer module. A switcher menu system may be enhanced by providing a first display for accessing a full menu system, and a second display for accessing at least a portion of the full menu system. In a modular switcher panel, a panel structure carries button modules, at least one of which is interchangeable without displacing other button modules.

    摘要翻译： 公开了视频制作切换器的各种改进。 在用户输入模块中，链接按钮可操作以将键功能与用户可控输入设备相链接。 可以提供可能校准的多色照明装置，用于以可控的颜色和/或强度照亮切换器的每个按钮。 在改进的脉宽调制（PWM）方案中，PWM输出取决于伪随机数和阈值。 键控器模块上的显示器可用于提供当前与键控器模块相关联的键源和类型的指示。 可以通过提供用于访问完整菜单系统的第一显示器和用于访问整个菜单系统的至少一部分的第二显示器来增强切换器菜单系统。 在模块化切换器面板中，面板结构承载按钮模块，其中至少一个可互换而不移动其他按钮模块。

    Method, system, and device for automatic determination of nominal backing color and a range thereof
    5.
    发明授权
    Method, system, and device for automatic determination of nominal backing color and a range thereof 有权
    用于自动确定标称背衬颜色及其范围的方法，系统和装置

    公开(公告)号：US07508455B2

    公开(公告)日：2009-03-24

    申请号：US11072502

    申请日：2005-03-07

    申请人： Yu Liu ,  David Allan Ross ,  Alun John Fryer

    发明人： Yu Liu ,  David Allan Ross ,  Alun John Fryer

    IPC分类号： H04N9/74 ,  H04N9/75

    CPC分类号： H04N9/75

    摘要： A method, system, and device for generating a clean clipping signal α for a chromakey function or a video composition, including identifying background colors formed by a solid color background, shadows cast by still and moving subjects, a non-uniform reflection caused by spot lighting and non-flat backdrop or flaw wall, and translucent foreground objects, with a 3D volume in a 3D color space; determining parameters defining same by using a dirty alpha α; generating a clean clipping signal αshd background colors, and a clean clipping signal αtsl for translucency colors; identifying foreground colors formed by the still and moving subjects with a 3D volume in a 3D color space; classifying colors into transition colors; and generating an area map for mapping each pixel into background, shadow, translucent, foreground, and transition areas.

    摘要翻译： 一种用于为色差函数或视频构图生成干净的剪切信号α的方法，系统和装置，包括识别由纯色背景形成的背景颜色，由静止和移动的对象投射的阴影，由斑点引起的不均匀的反射 照明和非平面背景或缺陷墙，以及三维色彩空间中的3D体积的半透明前景物体; 确定通过使用脏αalpha定义相同的参数; 产生干净的剪切信号alphashd背景颜色，和干净的剪切信号alphatsl的半透明颜色; 识别由3D颜色空间中的3D体积的静止和移动的对象形成的前景颜色; 将颜色分类为过渡颜色; 以及生成用于将每个像素映射到背景，阴影，半透明，前景和过渡区域的区域图。

    Electronic hardware resource management in video processing
    8.
    发明授权
    Electronic hardware resource management in video processing 有权
    视频处理中的电子硬件资源管理

    公开(公告)号：US08499019B2

    公开(公告)日：2013-07-30

    申请号：US12627386

    申请日：2009-11-30

    申请人： Yu Liu ,  David Allan Ross ,  Kizito Gysbertus Antonius Van Asten

    发明人： Yu Liu ,  David Allan Ross ,  Kizito Gysbertus Antonius Van Asten

    IPC分类号： G06F17/17 ,  G06F17/10

    CPC分类号： H04N5/2628 ,  H04N5/272 ,  H04N19/117 ,  H04N19/42 ,  H04N19/59 ,  H04N19/80

    摘要： Apparatus and methods for electronic hardware resource management in video processing are provided. A hybrid filter is controllable to apply either Finite Impulse Response (FIR) filtering or Infinite Impulse Response (IIR) filtering for vertical filtering of a video image during a resizing process. A scale factor by which the video image is to be resized in the resizing process is determined, and the hybrid filter is controlled to apply FIR filtering for the vertical filtering where the determined scale factor satisfies a first condition relative to a threshold value ST or to apply IIR filtering for the vertical filtering where the determined scale factor satisfies a second condition relative to the threshold value ST. The first and second conditions are different and exclusive, such that only one type of filtering is applied. This hybrid filtering approach uses each type of filtering to avoid defects of the other.

    摘要翻译： 提供了视频处理中电子硬件资源管理的装置和方法。 混合滤波器是可控的，以在调整大小过程期间对视频图像的垂直滤波应用有限脉冲响应（FIR）滤波或无限脉冲响应（IIR）滤波。 确定在调整大小过程中要调整视频图像大小的比例因子，并且控制混合滤波器以对垂直滤波应用FIR滤波，其中所确定的比例因子相对于阈值ST满足第一条件，或者 对于垂直滤波应用IIR滤波，其中所确定的比例因子相对于阈值ST满足第二条件。 第一和第二条件是不同和排他的，使得仅应用一种类型的过滤。 这种混合过滤方法使用每种类型的过滤来避免另一种过滤的缺陷。